The Latest: Coast Guard, NTSB investigating boat capsizing

Investigators with the Coast Guard and National Transportation Safety Board are investigating a duck boat accident that killed 17 people in southern Missouri.

Coast Guard Petty Officer Lora Ratliff says the agencies are working "side-by-side" to determine what caused the Ride the Ducks boat to sink Thursday night in Table Rock Lake in the Branson area. NTSB spokesman Peter Knudson says its investigators are arriving Friday.

Authorities are releasing few details, including whether the people aboard were wearing life jackets. The NTSB and Stone County Sheriff Doug Rader are urging anyone with video or photos of what happened to provide them to authorities.

11 a.m.

Authorities say the final four people missing since a boat capsized on a lake in southern Missouri have been found, raising the death toll to 17.

The office manager at the Stone County Sheriff's office, Wendy Doucey, confirmed the discovery Friday. The Ride the Ducks boat sank Thursday night in the Lake of the Ozarks near Branson.

The victims' names haven't been released.

Branson is about 200 miles (320 kilometers) southeast of Kansas City and is a popular vacation spot for families and other tourists.

10 a.m.

Authorities are working to recover a duck boat that capsized and sank in a southern Missouri lake, killing more than a dozen people.

Stone County Sheriff Doug Rader said during a news conference Friday that he believes the boat sank in 40 feet (12 meters) of water and rolled into 80 feet (25 meters) of water. He says the Missouri State Highway Patrol divers have located the vessel, which is on its wheels in Table Rock Lake in the Branson area. Authorities plan to recover the boat later Friday.

He says the first call about the capsized boat came in at 7:09 p.m. Thursday. He says authorities are working to determine what happened and had no information about whether passengers were wearing life jackets or whether they were just stowed onboard.

The victims' names haven't been released.

9:30 a.m.

Authorities say the four people still missing after a duck boat capsized in southern Missouri are presumed dead, in addition to the 13 people whose bodies have been recovered.

Stone County Sheriff Doug Rader described the search as a "recovery mode for the bodies that are still missing" during a news conference Friday morning.

Rader says the driver of the Ride the Ducks boat died but that the captain survived when the boat sank Thursday night in Table Rock Lock in the Branson area. Thirteen victims already have been found.

Rader says an off-duty deputy aboard the nearby Showboat Branson Belle and others on the riverboat jumped in to help the duck boat's passengers. He described the rescue effort as "outstanding."

Branson is about 200 miles (320 kilometers) southeast of Kansas City and is a popular vacation spot for families and other tourists.

8:40 a.m.

The National Weather Service is warning of a fresh round of thunderstorms, as divers search for four people missing after a duck boat capsized on a lake in southwest Missouri.

Meteorologist Jason Schaumann says some of the storms are expected to churn up large hail and damaging straight line winds when they hit Friday afternoon in the Branson area where the Ride the Ducks boat sank. The bodies of 13 victims already have been found.

Schaumann says wind gusts of 50 to 65 mph (80 to 105 kph) were recorded around the time the boat capsized Thursday night in Table Rock Lake after a severe thunderstorm warning had been issued. He says the weather was calm in the search area overnight and that the area narrowly avoided more storms Friday morning.

8:10 a.m.

President Donald Trump is extending his "deepest sympathies" to those affected by a Missouri boat accident that has killed at least 13.

In a Friday morning tweet, the president sends his: "deepest sympathies to the families and friends of those involved in the terrible boat accident which just took place in Missouri."

He adds: "Such a tragedy, such a great loss. May God be with you all!"

Local officials said 14 people survived the sinking of a duck boat and four others remain missing after the accident Thursday evening on Table Rock Lake in Branson, Missouri.

8:05 a.m.

A witness has described the wind-borne chaos as a duck boat capsized and sank in a lake in southwest Missouri.

Allison Lester told ABC's "Good Morning America" Friday that the "waters were rough" and "debris was flying everywhere" Thursday evening when the Ride the Ducks boat sank in Table Rock Lake in Branson. Lester was on a nearby boat.

Thirteen people were killed and four others are missing.

Lester's boyfriend, Trent Behr, says he saw a woman lying in the water and that they pulled her up onto the boat. He says she was unconscious and that he was getting ready to start CPR when emergency responders arrived.

Branson is about 200 miles (320 kilometers) southeast of Kansas City and is a popular vacation spot for families and other tourists.

7:15 a.m.

Authorities say divers have found two more bodies after a duck boat carrying tourists capsized in southwest Missouri, bringing the death toll to 13.

Branson is about 200 miles (320 kilometers) southeast of Kansas City and is a popular vacation spot for families and other tourists looking for entertainment ranging from theme parks to live music.

6:40 a.m.

Authorities say six people remain missing after a duck boat carrying tourists capsized and sank on a lake in southwest Missouri.

The Stone County Sheriff's Office updated the number of missing after the accident on Table Rock Lake in Branson Thursday evening from five in a post on Facebook early Friday. The office says 11 people are confirmed dead and 14 survived.

Seven people were hospitalized after the boat capsized and two are in critical condition.

Divers with the Missouri State Highway Patrol will resume searching for the missing Friday.

12:30 a.m.

A Missouri sheriff says at least 11 people have now been confirmed dead after a boat carrying tourists on a lake in a popular vacation city capsized and sank.

Stone County Sheriff Doug Rader says seven people have been hospitalized and five others remain missing. He says divers have ended their search of Table Rock Lake in Branson for the night.

The National Transportation Safety Board said on Twitter that investigators will arrive on the scene Friday morning.

Rader says stormy weather is believed to be what caused the Ride the Ducks boat to capsize Thursday night.

National Weather Service meteorologist Steve Lindenberg says the agency issued a severe thunderstorm warning for the Branson area Thursday evening. He says winds reached speeds of more than 60 mph.

Branson is about 200 miles (320 kilometers) southeast of Kansas City and is a popular vacation spot for families and other tourists looking for entertainment ranging from theme parks to live music.

9:50 p.m.

A sheriff in Missouri says a tourist boat has apparently capsized on a lake, leaving eight people dead and several others hospitalized.